[INFO] fetching crate quinn-proto 0.7.1...
[INFO] checking quinn-proto-0.7.1 against try#7b3565da729099dbe807466fcd118fb2815986e0 for pr-81789
[INFO] extracting crate quinn-proto 0.7.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate quinn-proto 0.7.1 on toolchain 7b3565da729099dbe807466fcd118fb2815986e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate quinn-proto 0.7.1
[INFO] finished tweaking crates.io crate quinn-proto 0.7.1
[INFO] tweaked toml for crates.io crate quinn-proto 0.7.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rcgen v0.8.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ed95de0637e4e9adda09d88173c1712160106d72e26e8087bc858be61c60ae6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6ed95de0637e4e9adda09d88173c1712160106d72e26e8087bc858be61c60ae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ed95de0637e4e9adda09d88173c1712160106d72e26e8087bc858be61c60ae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ed95de0637e4e9adda09d88173c1712160106d72e26e8087bc858be61c60ae6", kill_on_drop: false }`
[INFO] [stdout] 6ed95de0637e4e9adda09d88173c1712160106d72e26e8087bc858be61c60ae6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45111e37e45ce6443c7909031ff9ee5a9c4cec8e37fdfaf71a60b515b5c6681b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "45111e37e45ce6443c7909031ff9ee5a9c4cec8e37fdfaf71a60b515b5c6681b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking assert_matches v1.5.0
[INFO] [stderr]    Compiling hex-literal v0.3.1
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking sharded-slab v0.1.1
[INFO] [stderr]     Checking pem v0.8.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking yasna v0.3.2
[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking rcgen v0.8.10
[INFO] [stderr]     Checking rustls v0.19.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]     Checking tracing-subscriber v0.2.17
[INFO] [stderr]     Checking quinn-proto v0.7.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0659]: `assert_matches` is ambiguous (glob import vs any other name from outer scope during import/macro resolution)
[INFO] [stdout]    --> src/tests/util.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |         assert_matches!(
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = note: `assert_matches` could refer to a macro from prelude
[INFO] [stdout] note: `assert_matches` could also refer to the macro imported here
[INFO] [stdout]    --> src/tests/util.rs:18:5
[INFO] [stdout]     |
[INFO] [stdout] 18  | use super::*;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `assert_matches` to disambiguate
[INFO] [stdout]     = help: or use `self::assert_matches` to refer to this macro unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `assert_matches` is ambiguous (glob import vs any other name from outer scope during import/macro resolution)
[INFO] [stdout]    --> src/tests/util.rs:139:9
[INFO] [stdout]     |
[INFO] [stdout] 139 |         assert_matches!(
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = note: `assert_matches` could refer to a macro from prelude
[INFO] [stdout] note: `assert_matches` could also refer to the macro imported here
[INFO] [stdout]    --> src/tests/util.rs:18:5
[INFO] [stdout]     |
[INFO] [stdout] 18  | use super::*;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `assert_matches` to disambiguate
[INFO] [stdout]     = help: or use `self::assert_matches` to refer to this macro unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `assert_matches` is ambiguous (glob import vs any other name from outer scope during import/macro resolution)
[INFO] [stdout]    --> src/tests/util.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 143 |         assert_matches!(
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = note: `assert_matches` could refer to a macro from prelude
[INFO] [stdout] note: `assert_matches` could also refer to the macro imported here
[INFO] [stdout]    --> src/tests/util.rs:18:5
[INFO] [stdout]     |
[INFO] [stdout] 18  | use super::*;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `assert_matches` to disambiguate
[INFO] [stdout]     = help: or use `self::assert_matches` to refer to this macro unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `assert_matches` is ambiguous (glob import vs any other name from outer scope during import/macro resolution)
[INFO] [stdout]    --> src/tests/util.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |         assert_matches!(
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = note: `assert_matches` could refer to a macro from prelude
[INFO] [stdout] note: `assert_matches` could also refer to the macro imported here
[INFO] [stdout]    --> src/tests/util.rs:18:5
[INFO] [stdout]     |
[INFO] [stdout] 18  | use super::*;
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `assert_matches` to disambiguate
[INFO] [stdout]     = help: or use `self::assert_matches` to refer to this macro unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0659`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `quinn-proto`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "45111e37e45ce6443c7909031ff9ee5a9c4cec8e37fdfaf71a60b515b5c6681b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45111e37e45ce6443c7909031ff9ee5a9c4cec8e37fdfaf71a60b515b5c6681b", kill_on_drop: false }`
[INFO] [stdout] 45111e37e45ce6443c7909031ff9ee5a9c4cec8e37fdfaf71a60b515b5c6681b